How to use cmdlet inside an expression-CodePudding

As explained in this previous question, I would like to have the name and the file version of a list of files inside a directory.

Until now, thanks to Theo, I already have this:

$result = 
  Get-ChildItem -Path 'X:\path with spaces' | 
    Where-Object {$_.Extension -match '\.(dll|exe)'} |
    Select-Object Name, 
                  @{Name = 'FileVersion'; 
                    Expression = {$_.VersionInfo.FileVersion}}

Now I would like to add the checksum to that.
In order to achieve this, this is what I have tried:

$result = 
  Get-ChildItem -Path 'X:\path with spaces' | 
    Where-Object {$_.Extension -match '\.(dll|exe)'} |
      Select-Object Name, 
                    @{Name = 'FileVersion'; 
                      Expression = {$_.VersionInfo.FileVersion}}, 
                    @{Name = 'CheckSum'; 
                      Expression = {Get-FileHash($_).Hash}}

So, basically, I have added another "thing" with a name and an expression, which I tried to add (in case this seems ridiculous: this is my first Powershell day :-) ).
This does not work, but there is no error message: it's just as if the question for the checksum is not even there.

Does anybody know how I can solve this?
Thanks in advance

CodePudding user response：

Your code is actually giving an error however errors inside the expression script block are quietly ignored. See Notes of the official docs.

PS /> @{} | Select-Object @{Name = 'Something'; Expression = { throw }}

Something
---------

If you inspect the your $Error automatic variable you would likely see something like:

PS /> $Error[0]

Get-FileHash: Cannot bind argument to parameter 'Path' because it is null.

The right expression should be:

Expression = {(Get-FileHash $_.FullName).Hash}